MySQL 8.0 Release Notes
MySQL 8.0 Source Code Documentation
A schema is a database, so the SCHEMATA table provides information about databases.
The SCHEMATA table has these columns:
CATALOG_NAMEThe name of the catalog to which the schema belongs. This value is always
def.SCHEMA_NAMEThe name of the schema.
DEFAULT_CHARACTER_SET_NAMEThe schema default character set.
DEFAULT_COLLATION_NAMEThe schema default collation.
SQL_PATHThis value is always
NULL.DEFAULT_ENCRYPTIONThe schema default encryption. This column was added in MySQL 8.0.16.
Schema names are also available from the SHOW DATABASES statement. See Section 15.7.7.14, “SHOW DATABASES Statement”. The following statements are equivalent:
SELECT SCHEMA_NAME AS `Database` FROM INFORMATION_SCHEMA.SCHEMATA [WHERE SCHEMA_NAME LIKE 'wild'] SHOW DATABASES [LIKE 'wild'] You see only those databases for which you have some kind of privilege, unless you have the global SHOW DATABASES privilege.
Caution
Because any static global privilege is considered a privilege for all databases, any static global privilege enables a user to see all database names with SHOW DATABASES or by examining the SCHEMATA table of INFORMATION_SCHEMA, except databases that have been restricted at the database level by partial revokes.
Notes
The
SCHEMATA_EXTENSIONStable augments theSCHEMATAtable with information about schema options.